Added gr_font_size, gr_fb_blank

https://github.com/MoltenMotherBoard/android_device_samsung_gio/blob/aosp-ics/recovery/graphics.c
Merge pull request #1 from mackief/patch-1

Added gr_font_size, gr_fb_blank
Create README.md
fully working changes & overlay fixes
Merge pull request #1 from The-Superman/jb-4.2.2

Jb 4.2.2